Home / 421,157.07-581,195.34-230,170.41

Finding the Fourth Proportional to 421,157.07, 581,195.34 and 230,170.41

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Solution

The fourth proportional to 421,157.07, 581,195.34 and 230,170.41 is: 317,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,157.07 : 581,195.34 = 230,170.41 : x
  2. Step 2: Convert to fraction form
    421,157.07/581,195.34 = 230,170.41/x
  3. Step 3: Cross multiply
    421,157.07x = 581,195.34 × 230,170.41
  4. Step 4: Simplify right side
    421,157.07x = 133,773,969,697.89
  5. Step 5: Solve for x
    x = 133,773,969,697.89/421,157.07
  6. Step 6: Final answer
    x = 317,634.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.